Adding a link to Divi featured image posts slider

To link to the post both in the title and in the featured image in posts slider module. Add this custom CSS to to DIVI Custom CSS window.

.et_pb_post_slider .et_pb_slide_title a::after {
content: "";
position: absolute;
width: 100%;
height: 100%;
left: 0;
top: 0;
z-index: 1;

Creating a custom DIVI style button with CSS

To create a custom DIVI button you can use this CSS on any site and edit it to suit:

.custom-button a:hover {
color: #ffffff!important;
background: #000000!important;
border-color: #000000!important;
border-radius: 2px;
letter-spacing: 1px;